var ajax = {
	
	change : function (url,id){
		var xmlhttp = this.isdom(url);
		var str = xmlhttp.responseText ;		
		
		var obj = document.getElementById(id); 
		obj.innerHTML = str ;
		
		$('.date_has_event').each(function () {
		// options
		var distance = 10;
		var time = 250;
		var hideDelay = 500;

		var hideDelayTimer = null;

		// tracker
		var beingShown = false;
		var shown = false;

		var trigger = $(this);
		var popup = $('.events ul', this).css('opacity', 0);

		// set the mouseover and mouseout on both element
		$([trigger.get(0), popup.get(0)]).mouseover(function () {
			// stops the hide event if we move from the trigger to the popup element
			if (hideDelayTimer) clearTimeout(hideDelayTimer);

			// don't trigger the animation again if we're being shown, or already visible
			if (beingShown || shown) {
				return;
			} else {
				beingShown = true;

				// reset position of popup box
				popup.css({
					bottom: 20,
					left: -76,
					display: 'block' // brings the popup back in to view
				})

				// (we're using chaining on the popup) now animate it's opacity and position
				.animate({
					bottom: '+=' + distance + 'px',
					opacity: 1
				}, time, 'swing', function() {
					// once the animation is complete, set the tracker variables
					beingShown = false;
					shown = true;
				});
			}
		}).mouseout(function () {
			// reset the timer if we get fired again - avoids double animations
			if (hideDelayTimer) clearTimeout(hideDelayTimer);

			// store the timer so that it can be cleared in the mouseover if required
			hideDelayTimer = setTimeout(function () {
				hideDelayTimer = null;
				popup.animate({
					bottom: '-=' + distance + 'px',
					opacity: 0
				}, time, 'swing', function () {
					// once the animate is complete, set the tracker variables
					shown = false;
					// hide the popup entirely after the effect (opacity alone doesn't do the job)
					popup.css('display', 'none');
				});
			}, hideDelay);
		});
	});
	},
	
	isdom : function (url){
		var xmlhttp = false;
		
		try{	  // Firefox, Opera 8.0+, Safari
			xmlHttp=new XMLHttpRequest();
		}catch (e) {
			// Internet Explorer
			try {
				xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
			}catch (e){
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}
		}
		
		if (!xmlhttp && typeof XMLHttpRequest!='undefined')
		{
			xmlhttp = new XMLHttpRequest();
		}
		xmlhttp.open("GET",url,false);
		xmlhttp.send(null);
		return xmlhttp;
	 }	,
	
	checkURL : function (hash)
	{
		if(!hash) hash=window.location.hash;
		
		if(hash != lasturl)
		{
			lasturl=hash;
			
			if(hash=="")
				$(divid).html(default_content);
			else
				loadPage(hash);
		}
	}
}
